| EPICHLOROHYDRIN | • epichlorohydrin n. (Chemistry) Any epihalohydrin in which the halogen is chlorine. • EPICHLOROHYDRIN n. a volatile liquid toxic epoxide used esp. in making epoxy resins and rubbers.
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| HORNYHEAD | • hornyhead n. Any North American chubs of the genus Nocomis, especially Nocomis biguttatus. • HORNYHEAD n. a North American river chub.
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| HORNYHEADS | • hornyheads n. Plural of hornyhead. • HORNYHEAD n. a North American river chub.
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| HYDROMECHANICAL | • hydromechanical adj. Of or pertaining to hydromechanics. • HYDROMECHANICAL adj. relating to a branch of mechanics that deals with the equilibrium and motion of fluids and of solid bodies immersed in them.
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| HYDROMECHANICS | • hydromechanics n. (Physics) fluid mechanics, especially when dealing with water. • HYDROMECHANICS n. the study of movement in liquids, also HYDRODYNAMICS.
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| HYDRONEPHROSES | • hydronephroses n. Plural of hydronephrosis. • HYDRONEPHROSIS n. distension of the kidney with urine held up as a result of obstruction in the urinary tract.
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| HYDRONEPHROSIS | • hydronephrosis n. (Pathology) distension of the kidneys due to obstruction in the flow of urine. • HYDRONEPHROSIS n. distension of the kidney with urine held up as a result of obstruction in the urinary tract.
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| HYDRONEPHROTIC | • hydronephrotic adj. Exhibiting hydronephrosis. • HYDRONEPHROTIC adj. relating to hydronephrosis, distension of the kidney with urine.
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| HYDROPHANE | • hydrophane n. (Mineralogy) A semitranslucent variety of opal that becomes translucent or transparent on immersion in water. • HYDROPHANE n. a semitranslucent variety of opal that becomes translucent or transparent on immersion in water.
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| HYDROPHANES | • hydrophanes n. Plural of hydrophane. • HYDROPHANE n. a semitranslucent variety of opal that becomes translucent or transparent on immersion in water.
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| HYDROPHONE | • hydrophone n. A transducer that converts underwater sound waves into electrical signals, rather like a microphone. • HYDROPHONE n. an apparatus for listening to sounds conveyed by water.
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| HYDROPHONES | • hydrophones n. Plural of hydrophone. • HYDROPHONE n. an apparatus for listening to sounds conveyed by water.
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| HYPOCHONDRIASES | • hypochondriases n. Plural of hypochondriasis. • HYPOCHONDRIASIS n. morbid concern about one's health esp. when accompanied by delusions of physical disease.
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| ORTHOHYDROGEN | • orthohydrogen n. (Physics) form of the hydrogen molecule (H2) in which the two nuclei have parallel spin; about 75% of… • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction.
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| ORTHOHYDROGENS | • orthohydrogens n. Plural of orthohydrogen. • ORTHOHYDROGEN n. the form of molecular hydrogen, constituting about 75 per cent of the total at normal temperatures, in which the nuclei of the atoms spin in the same direction.
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